Resultados de búsqueda - "performer"

Effects of lighting on heart rates and respiratory rates in Calves por Spellerberg, Liv

“…Twelve 2–4 month old heifer calves were used. Two tests were performed in succession; an obstacle course followed by a novel-object test, under four light intensities; 225±20 lx (full), 5±0.7 lx, 0.5±0.2 lx and 0.5±0.2 lx in red light. …”
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First report of potato cyst nematode Globodera pallida (Stone, 1973) infecting potato (Solanum tuberosum L.) in Kenya por Mburu, H., Cortada, L., Mwangi, G., Gitau, K., Kiriga, A., Kinyua, Z., Ngundo, G., Ronno, W., Coyne, D., Holgado, R., Haukeland, Solveig

“…DNA amplification was performed from 14 cysts and 25 J2s using the multiplex-PCR method adapted from Bulman and Marshall (1997) and the ITS1-5.8S-ITS2 regions (Tirchi et al. 2016). …”
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Interactions between the female parasitoid Epidinocarsis lopezi De Santis (Hym., Encyrtidae) and its host, the cassava mealybug, Phenacoccus manihoti Matile-Ferrero (Hom., Pseudoco... por Löhr, Bernhard, Neuenschwander, Peter, Varela, Ana M., Santos, B.

“…In laboratory experiments, the influence of different host instars and population densities of the cassava mealybug (CM), Phenacoccus manihoti Matile‐Ferrero, on the reproductive performance of the encyrtid parasitoid Epidinocarsis lopezi (De Santis), was investigated. …”
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Genetic analysis of extra-early yellow and orange quality protein maize (Zea mays L.) inbread lines under low nitrogen and Striga stresses por Abu, P.

“…The objectives of this study were to i) assess the genetic diversity among a group of extra-early yellow QPM and orange QPM-provitamin A maize inbred lines, ii) identify low-N tolerant inbred lines, iii) determine the gene action for grain yield and other traits among the inbreds under low-N, Striga, and optimal environments iv) assess the performance and stability of the hybrids under low-N, Striga infestation and optimal conditions, and v) identify markers and candidate genes associated with low-N tolerance among the lines. …”
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Effect of Chitosan and Naringin on Enteric Methane Emissions in Crossbred Heifers Fed Tropical Grass por Jiménez Ocampo, Rafael, Montoya Flores, María Denisse, Herrera Torres, Esperanza, Pámanes-Carrasco, Gerardo, Arceo Castillo, Jeyder Israel, Valencia Salazar, Sara Stephanie, Arango, Jacobo, Aguilar-Pérez, Carlos Fernando, Ramírez Avilés, Luis, Solorio-Sánchez, Francisco Javier, Piñeiro Vázquez, Ángel Trinidad, Ku-Vera, Juan Carlos

“…First, an in vitro gas production experiment was performed adding 0, 1.5, 3.0 g/kg of CHI and NA under a completely randomized design. …”
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Bio-ecology and systematics of the scale insect Stictococcus vayssierei Richard, 1971 (Hemiptera: Stictococcidae), a major pest of root and tuber crops in the Nigero-Congolian fore... por Doumtsop, F.A.R.

“…Denaturing gradient gel electrophoresis and diagnostic PCR performed on the 16S rRNA bacterial gene using total DNA indicated that ARTS’populations were infected with a primary endosymbiont close to Uzinura diaspidicola of armored scale insects, three secondary endosymbionts including Rickettsia, Serratia and Wolbachia, and an uncultured gamma-proteobacterium. …”
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Prevalence and risk factors associated with Campylobacter infection in diarrheal patients in Busia County, Kenya por Ouko, T.T., Nyerere, A.K., Njeru, J.M., Fèvre, Eric M., Kariuki, S.

“…Isolation and identification of Campylobacter species was performed using standard culture method on Modified Charcoal Cefoperazone Deoxycholate medium and confirmed by mPCR. …”
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First report of Xanthomonas oryzae pv. oryzicola causing bacterial leaf streak of rice in Burundi por Afolabi, O., Milan, B., Amoussa, R., Koebnik, R., Poulin, L., Szurek, B., Habarugira, G., Bigirimana, J., Silué, D.

“…Pathogenicity tests were performed on greenhouse-grown 4-week-old rice plants of the cvs. …”
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Molecular characterization of genomic regions for adult plant resistance to stem rust in a spring wheat mapping population por Rauf, Yahya, Bajgain, Prabin, Rouse, Matthew N., Khanzada, Khalil A., Bhavani, Sridhar, Huerta Espino, Julio, Singh, Ravi P., Imtiaz, Muhammad, Anderson, James A.

“…Physiological race analysis was performed using the 20 North American stem rust differential lines following the standard protocol of Jin et al. (2008). …”
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Assessing nitrogen flows and greenhouse gas emissions in low input cropping systems of Lake Victoria Basin por Winnie, N.

“…The study aimed to assess key N performance indicators at field and farm level based on N use scenarios and help to inform policy on formulating relevant decision and practices to enhance N management for improved crop productivity and environmental sustainability. …”
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Registration of ‘UAM14‑122‑17‑7 and UAM14‑123‑18‑3’ cowpea cultivars with high‑yield, resistance to Striga, and large seed size with brown colour por Omoigui, L., Kamara, A., Shaibu, A.S., Iyorkaa, N., Ugbaa, M.S., Olufajo, O., Iolarmen, T., Timko, M.P.

“…The two cultivars were approved for release and registered in the Nigeria Variety Catalogue of the Plant Varieties in 2022 based on their superior performance in on-station, field and multi-locational trials and the massive demand for high-yielding Striga-resistant cowpea cultivars with brown seed coat colour and large seed by farmers. …”
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Genetic evaluation of growth rate and efficiency-related traits in Dorper sheep por Yeshaw, Shanbel, Goshme, Shenkute, Abebe, Aschalew, Bisrat, Asfaw, Abebe, Ayele, Zewdie, Tesfaye, Areaya, Alemnew, Mekonnen, Tefera, Eshete, Mesfin, Getachew, Tesfaye

“…Furthermore birth season had a significant effect (P < 0.01) in traits measured during pre-weaning growth period. Phenotypic performance for all studied traits except traits measured from six months to 12 months of age showed a declined trend over years. …”
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Beyond resource constraints - Exploring the biophysical feasibility of options for the intensification of smallholder crop-livestock systems in Vihiga district, Kenya por Tittonell, Pablo A., Wijk, Mark T. van, Herrero, Mario, Rufino, Mariana C., Ridder, N.A. de, Giller, Kenneth E.

“…In 10-year simulations of the baseline, current scenario using historical weather data the wealthiest farms Type 2 achieved food self-sufficiency (FSS) in 20% of the seasons due to rainfall variability, whereas the poorer Type 4 only achieved FSS in 0 to 30% of the seasons; soil organic C decreased during the simulations at annual rates of −0.54, −0.73, −0.85 and −0.84 t C ha−1 on farms of Type 1–4, respectively; large differences in productivity and recycling efficiency between farm types indicated that there is ample room to improve the physical performance of the poorer farms (e.g. light and water use efficiency was 2–3 times larger on wealthier farms). …”
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Evidence for Resilient Agriculture Dataset v1.0.1 por Rosenstock, Todd Stuart, Steward, Peter Richard, Shuck, Julia, Richards, Meryl, Poultouchidou, Anatoli, Ombewa, Babra Vivian Adhiambo, Mumo, Elijah Mustoki, Manda, Lucas, Madalinska, Anna, Kamau, Hannah, Kagwiria, Dorcas, Gitau, Angela, Eyrich, Anna-Sarah, English, William, Champalle, Clara, Bell, Patrick, Atieno, Erica, Akinleye, Akinwale, Namoi, Nictor, Lamanna, Christine, Joshi, Namita, Ström, Helena

“…Observations are geolocated and can be linked to opensource environmental, economic, and social data to investigate the interaction of local context on performance indicators. ERA offers a new resource for evaluating the impact of changing farming practices, providing foundational evidence for designing policies, programs, and investments to support African agricultural development. …”
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Quantification of direct and indirect greenhouse gas emissions from rice field cultivation with different rice straw management practices – A study in the autumn - winter season in... por Nguyen, Van Hieu, Nguyen, Thanh Nghi, Le, Quang Vinh, Le, Minh Anh, Nguyen, Van Hung, Gummert, Martin

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Sustainability curriculum for livestock production por Oliveira, Denis, Laurens, Violaine, Quental, Flavio, Lima, Paulo

“…The TRANSITIONS program seeks to support large-scale agroecological transitions through the development and adoption of multidimensional performance indicators for food and agricultural systems, inclusive digital tools, incentives and public and private sector investments for food systems. …”
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Using digital tools for a sustainable transition in small- scale livestock farming in Brazil: Results from workshops with local action partners por Oliviera, Denis, Laurens, Violaine, Pereira, Mariana

“…The TRANSITIONS program seeks to support large-scale agroecological transitions through the development and adoption of multidimensional performance indicators for food and agricultural systems, inclusive digital tools, incentives and public and private sector investments for food systems. …”
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Communicating complexity: Integrated assessment of trade-offs concerning soil fertility management within African farming systems to support innovation and development por Giller, Kenneth E., Tittonell, Pablo A., Rufino, Mariana C., Wijk, Mark T. van, Zingore, Shamie, Mapfumo, Paul, Adjei-Nsiah, Samuel, Herrero, Mario, Chikowo, Regis, Corbeels, Marc, Rowe, E., Baijukya, Frederick P., Mwijage, A., Smith, Jimmy W., Yeboah, E., Burg, J. van de, Sanogo, M., Misiko, Michael T., Ridder, N.A. de, Karanja, S., Kaizzi, C., Kungu, J., Mwale, M., Nwaga, D., Pacini, C., Vanlauwe, Bernard

“…We combine the tools of systems analysis and experimentation, detailed field observations and surveys, incorporate expert knowledge (local knowledge and results of research), generate databases, and apply simulation models to analyse performance of farms, and the impacts of introducing new technologies. …”
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Transhumance cattle production system in North Gondar, Amhara region, Ethiopia: is it sustainable? por Tegegne, Azage, Mengistie, T., Desalew, T., Teka, W., Dejen, Eshete

“…In the lowlands, milking, butter making and selling of dairy products were performed only by male herders. In the highland areas, butter (95.6%) was one of the most important saleable dairy products followed by raw milk (18.4%), fermented milk (ergo) and buttermilk (6.1%). …”
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Study on knowledge generation and transfer in Ethiopian agricultural researches por Chala, S.

“…The finding of this study indicates that in Ethiopia not all agricultural researchers and institutes fully perform end user demand analysis before generating and transferring agricultural knowledge. …”
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